twenty–nine appearances and scoring six times in all competitions. Ahead of the 2013–14 season, FC Utrecht announced that Van Der Gun was appointed as the new captain. At the start of the 2013–14 season, he played in both legs of the UEFA Europa League second round match against FC Differdange 03, as FC Utrecht lost 5–4 on aggregate, eliminating the club from the tournament. However, Van Der Gun suffered a knee injury that saw him out for two months. But he made his return to the first team from injury, coming on as a 59th-minute substitute, in a 1–0 loss against Feyenoord on 22 September 2013. Van Der Gun captained his first match of the season against Roda JC on 28 September 2013 and scored his first goal of the season, in a 3–2 win. However, he suffered a knee injury while training and was sidelined for three months. It wasn't until on 8 March 2014 when Van Der Gun made his return from injury, coming on as a 62nd-minute substitute, in a 1–0 loss against PSV Eindhoven. Three weeks later on 28 March 2014, he scored his second goal of the season, in a 2–2 draw against NAC Breda. His return was short–lived when Van Der Gun suffered a shoulder injury and was substituted in the 36th minute, as FC Utrecht won 2–1 on 13 April 2014. After the match, it was announced that he would be out for the rest of the 2013–14 season. At the end of the 2013–14 season, Van Der Gun went on to make seventeen appearances and scoring two times in all competitions. On 30 April 2014, it was announced that Van der Gun would be leaving FC Utrecht at the end of the season. Having been a free agent for months, he retired from professional football. Post Playing Career Following his retirement from professional football, Van Der Gun, along with John Heitinga, were added to Ajax's backroom staff and was appointed as the club's trainer. He previously worked as a youth trainer at ADO Den Haag. International career Van Der Gun represented the youth levels of Netherlands. In August 2000, he was called up to the Netherlands U21 squad for the first time. Van Der Gun scored on his U21 national team debut, in a 2–0 win against Republic of Ireland on 1 September 2000. He then scored his second goal for Netherlands